Improved well-tube



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IMPROVED WELL-TUBE.

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TO ALL WHOM IT MAY CONCERN:

Bc it known that I, A. Y. McDONALD, of Dubuque, in the county oi' Dubuque, and in the State of Iowa, have invented certain new and useful improvements in Well-Tubesf and I do hereby declare that'the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon.

In the annexed drawings, making part of this specification, A represents a well-tube, which is provided at its lower end with the pointed head B, and a little above this head with a series of peri'orations, OC C, which admit water to said tube. That portion of the tube which is providedwith `holes or peri'ol'ations is wrapped with wire prepared as follows: I take a coarse article-.of brass, steel, or anyfother kind of wire which is 'Suitable for the purpose, and wind around it (the coarse u'irelki-Ivery fine wire, but do not wind itvery closely. I s, thon take this coarse wire and Wind it around the tube A, over the perforations C m it, as' closely as it can be wound. The fine wire keeps the coarse wire from touching when wound around, and allows a'circulation of water through the coils oi' the coarse wire into the perforatious, but loes not allow sandto enter said perforations. When the pipe A is driven into the ground, and strikes a. vein oi' water, the pure water runs into the r pipe through the wire, while sand cannot enterto stop up and clog 'the pipe.

I am aware that gauze wire has been used for covering the perforatins of pipes to prevent the entrance of sand and gravel, but in driving the pipe into the 'ground the gau'zej'sliable to be torn olf. of the pipe and leave thc perforations exposed. It is impossible with this construction for thewire tobe removed from the pipe by driving it into the ground, and said pipe may be used with perfectr certainty. f y

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

The pipe A, perforated as described, and wrapped with the coarse wire after being first wound with the finer wire, in the manner substantially as and for the purposes specied. I

In testimony that I claim the foregoing I have hereunto set my hand vvthis'lSth day of February, 1867.

A. Y. McDONALI). `Witnesses DAVID J. POWER, GEORGE HEIN. 

